hasumikin

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PicoRuby Workshop 2025 - Internet of Things

Previous sections:

1. Setup + LED: https://tinyurl.com/picoruby-2025
2. Microphone: https://tinyurl.com/picoruby-mic
3. Buzzer: https://tinyurl.com/picoruby-buzzer
4. Useful gems: https://tinyurl.com/picoruby-gems

hasumikin

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PicoRuby Workshop 2025 - Useful Gems

Previous sections:

1. Setup + LED: https://tinyurl.com/picoruby-2025
2. Microphone: https://tinyurl.com/picoruby-mic
3. Buzzer: https://tinyurl.com/picoruby-buzzer

So far we've learned the fundamental peripherals: GPIO, ADC, and PWM. These are the building blocks of all microcontroller programming. Now let's explore how PicoRuby's gem system makes working with complex sensors much easier!

hasumikin

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PicoRuby Workshop 2025 - Buzzer & PWM

Previous sections:

1. Setup + LED: https://tinyurl.com/picoruby-2025
2. Microphone: https://tinyurl.com/picoruby-mic

In this section, we'll learn about PWM (Pulse Width Modulation) - a powerful technique that allows us to simulate analog signals using digital outputs. We'll use PWM to create sounds with a buzzer and control LED brightness smoothly.

hasumikin

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PicoRuby Workshop 2025 - Microphone & ADC

Previous sections:

1. Setup + LED: https://tinyurl.com/picoruby-2025

In this section, we'll learn about analog-to-digital conversion (ADC) and explore how to read analog sensors. We'll use a microphone to detect sound levels and also explore the RP2350's built-in temperature sensor.

hasumikin

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PicoRuby Workshop 2025 - Setup & LED Control

Before starting, please check the following resources:

• Terminal emulator (Many of you have already read): https://picoruby.github.io/terminal-emulator
• Setup R2P2: https://picoruby.github.io/setup
  • In this workshop, we use R2P2-PICORUBY-PICO2_W-*.uf2 (PICO2_W is the point)
• Breadboard basics: https://picoruby.github.io/breadboard-basics

t18n

##########################################
######## NickelMenu configuration ########
##########################################

#
## Main Menu
#
menu_item : main : Pocket : nickel_open: library : pocket
menu_item : main : Browser (full window) : nickel_browser :
menu_item : main : Browser (popup) : nickel_browser : modal

ClementNerma

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	${#VARNAME}
Get a single character	${VARNAME[index]}

DaveSanders

Scenario

I want to use Rspec to build feature specs that test SR pages, just like normal web pages.

Therefore, I expect Capybara + Rspec to be able to do things like:

visit login_path
fill_in 'Email', with: user.email
fill_in 'Password', with: user.password + 'BAD'
expect(page).to have_content('That email or password is not correct')

jamesmacfie

How to use

In iTerm2, in the menu bar go to Scripts > Manage > New Python Script

Select Basic. Select Long-Running Daemon

Give the script a decent name (I chose auto_dark_mode.py)

Save and open the script in your editor of choice.

narate

Create a Wi-Fi hotspot on Linux using nmcli

Original post : https://unix.stackexchange.com/a/310699

nmcli con add type wifi ifname wlan0 con-name Hostspot autoconnect yes ssid Hostspot
nmcli con modify Hostspot 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared
nmcli con modify Hostspot wifi-sec.key-mgmt wpa-psk
nmcli con modify Hostspot wifi-sec.psk "veryveryhardpassword1234"